Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash paid for interest			$ 127,806	$ 73,905
Cash paid (refunds received) for income taxes, net			3,871	261
Non-cash investing activity:
Mortgage servicing rights resulting from loan sales			507,849	299,082
Mortgage servicing liabilities resulting from loan sales			6,576	7,632
Unsettled portion of MSR acquisitions			1,053	9,457
Operating right-of-use assets recognized	$ 4,964	$ 87	6,498	58,713
Non-cash financing activity:
Issuance of Excess servicing spread payable to PennyMac Mortgage Investment Trust pursuant to a recapture agreement			862	950
Issuance of common stock in settlement of director fees	$ 48	$ 50	$ 96	$ 136